Nucleon resonances with spin<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>3</mml:mn><mml:mo>/</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>5</mml:mn><mml:mo>/</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math>in the isobar model for kaon photoproduction

Mart, T.; Clymton, S.; Arifi, Ahmad Jafar

doi:10.1103/physrevd.92.094019

Cited by 49 publications

(42 citation statements)

References 76 publications

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“…1 Model A and Model B show very different trends in this kinematics. Note that this phenomenon has been previously observed [10] and subsequent problems in hypernuclear photoproduction have been foreseen, since in the latter the cross section is only sizable in the forward region [3]. Thus, further study in the forward kinematics is strongly required.…”

Section: Resultsmentioning

confidence: 61%

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Effects of Spin-5/2 Nucleon Resonances on the Elementary Kaon Photoproduction Process

Clymton¹,

Mart²

2017

Proceedings of the 12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015)

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We have studied kaon photoproduction on the proton by using the prescription of Pascalutsa and Vrancx (Model A) and that of David et al. (Model B). We use an effective Lagrangian approach to calculate the background and resonance amplitudes. All nucleon resonances with spin-5/2 listed by the Particle Data Group are included. The unknown coupling constants are extracted from fitting to around 7400 data points. It is found that Model A leads to a better agreement with experimental data.

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Section: Resultsmentioning

confidence: 61%

“…[3]. In Model A the scattering amplitude for spin-5/2 nucleon resonances is calculated by using the prescriptions proposed by Pascalutsa [1] and Vrancx [4].…”

Section: Formalismmentioning

confidence: 99%

Effects of Spin-5/2 Nucleon Resonances on the Elementary Kaon Photoproduction Process

Clymton¹,

Mart²

2017

Proceedings of the 12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015)

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“…Interestingly, similar results are also obtained in the angular dependence of single polarization observables. On the top of that, the double polarization observables could be nicely reproduced if the spin-5/2 nucleons resonances were included in the model [3]. …”

Section: Resultsmentioning

confidence: 88%

Spin-3/2 Nucleon Resonances in Kaon Photoproduction

Arifi¹,

Mart²

2017

Proceedings of the 12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015)

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We have investigated two different formulations of propagators and vertex factors of spin-3/2 nucleon resonances by means of the isobar model for kaon photoproduction γp → K + Λ. The results obtained from both formulations are fitted to experimental data by allowing the coupling constants to vary as free parameters. It is found that the gauge invariant formulation of the interaction vertex leads to a better agreement with the experimental data.

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“…Total cross-sections predicted by Kaon-Maid [12], calculated from the previous covariant model [6] and the present calculation, compared with the experimental data from the CLAS collaboration [13]. program library from CERN.…”

Section: Resultsmentioning

confidence: 98%

“…A detailed explanation of the notation used in Equation (1) is given, e.g., in Reference [6]. Inside this reaction there are three types of resonances that contribute to both background and resonance terms, i.e., the nucleon resonance in s-channel, the meson resonances in t-channel, and the hyperon resonance in u-channel.…”

Section: Formalismmentioning

confidence: 99%

Kaon photoproduction processes γp → K+Λ and γn → K0Λ from thresholds up to W = 2.0 GeV

Rusli

Mart²

2017

AIP Conference Proceedings

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Abstract. Kaon photoproduction processes γp → K + Λ and γn → K 0 Λ have been investigated in the energy regime from threshold up to W = 2.0 GeV. The K + Λ background amplitude is constructed from the appropriate Feynman diagrams, whilst the resonance terms were obtained by using the multipole approach. The observables for the K 0 Λ channel are obtained by imposing the isospin symmetry to the K + Λ channel and using some experimental data on the helicity photon amplitudes for neutron obtained from the Particle Data Group. The observables used in the present investigation are the cross section and polarization observables. In the case of K + Λ channel, the agreement with the experiment data has been achieved. In the case of K 0 Λ channel, the predicted observables indicate significant discrepancies with the prediction of Kaon-Maid.

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Nucleon resonances with spin3/2and5/2in the isobar model for kaon photoproduction

Cited by 49 publications

References 76 publications

Effects of Spin-5/2 Nucleon Resonances on the Elementary Kaon Photoproduction Process

Effects of Spin-5/2 Nucleon Resonances on the Elementary Kaon Photoproduction Process

Spin-3/2 Nucleon Resonances in Kaon Photoproduction

Kaon photoproduction processes γp → K+Λ and γn → K0Λ from thresholds up to W = 2.0 GeV

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